[1] Univ Washington, Sch Nursing, Dept Biobehav Nursing & Hlth Informat, Seattle, WA 98195 USA
[2] Geisel Sch Med Dartmouth Coll, Hanover, NH 03755 USA
[3] Dartmouth Hitchcock Med Ctr, Ctr Digest Hlth, Lebanon, NH 03756 USA
[4] Dartmouth Coll, Geisel Sch Med, Dartmouth Inst Hlth Policy & Clin Practice, Lebanon, NH 03756 USA
[5] Dartmouth Hitchcock Med Ctr, Dept Psychiat, Lebanon, NH 03756 USA